Change content of div in keyframes animation CSS - html

Question

I have following code.
#mf-loader-container {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
width: 500px;
height: 30px;
}
.mf-loader-circle {
position: absolute;
height: 30px;
width: 30px;
border-radius: 50%;
border: 2px solid #03C9A9;
top: -15px;
background: white;
text-align: center;
line-height: 30px;
color: #03C9A9;
}
.mf-loader-text {
position: absolute;
width: 150px;
top: 20px;
}
#one-text {
left: -10px;
-webkit-animation: cl 3s;
}
#two-text {
left: 200px;
-webkit-animation: cl 3s;
-webkit-animation-delay: 2s;
-webkit-animation-fill-mode: forwards;
color: rgba(1, 1, 1, 0);
}
#three-text {
left: 480px;
-webkit-animation: cl 3s;
-webkit-animation-delay: 3s;
-webkit-animation-fill-mode: forwards;
color: rgba(1, 1, 1, 0);
}
#-webkit-keyframes cl {
from {
color: rgba(1, 1, 1, 0);
}
to {
color: rgba(1, 1, 1, 1);
}
}
#two {
left: 240px;
}
#three {
left: 490px;
}
#mf-loader {
width: 100%;
height: 3px;
background: #03C9A9;
position: absolute;
-webkit-animation: mymove 5s;
/* Chrome, Safari, Opera */
animation: mymove 5s;
border-radius: 3px;
}
/* Chrome, Safari, Opera */
#-webkit-keyframes mymove {
0% {
width: 0px;
}
50% {
width: 50%;
}
100% {
width: 100%;
}
}
/* Standard syntax */
#keyframes mymove {
0% {
width: 0px;
}
50% {
width: 50%;
}
100% {
width: 100%;
}
}
<div id="mf-loader-container">
<div id="mf-loader">
<div class="mf-loader-circle" id="one">
1
</div>
<div class="mf-loader-circle" id="two">
2
</div>
<div class="mf-loader-circle" id="three">
3
</div>
<div class="mf-loader-text" id="one-text">
Each day will be better than last.
<br>This one especially
</div>
<div class="mf-loader-text" id="two-text">
Subscribing .. Thank you for subscribing. We appreciate it!
</div>
<div class="mf-loader-text" id="three-text">
DONE
</div>
</div>
</div>
It is an animated checkout-like action which is done with CSS alone. I'm trying to change the content of the circle once the text appears to check mark ✓ - is there any way to change the content using content tag in css.

Answer 1

Change the content (the 1, 2, 3 numbers) to :after pseudo-elements and set the content there. Then, apply that to each of the circles. With this, you can include them into your animation by changing content:"";
Change "check" to whatever you need.
.mf-loader-circle:after {
position: absolute;
width: 100%;
height: 100%;
left: 50%;
top: 50%;
transform: translate(-50%, -50%);
}
#one:after {
content: "1";
-webkit-animation: check1 3s;
-webkit-animation-fill-mode: forwards;
}
#two:after {
content: "2";
-webkit-animation: check2 3s;
-webkit-animation-delay: 2s;
-webkit-animation-fill-mode: forwards;
}
#three:after {
content: "3";
-webkit-animation: check3 3s;
-webkit-animation-delay: 3s;
-webkit-animation-fill-mode: forwards;
}
#-webkit-keyframes check1 {
from {
content: "1";
}
to {
content: "check";
}
}
#-webkit-keyframes check2 {
from {
content: "2";
}
to {
content: "check";
}
}
#-webkit-keyframes check3 {
from {
content: "3";
}
to {
content: "check";
}
}
#mf-loader-container {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
width: 500px;
height: 30px;
}
.mf-loader-circle {
position: absolute;
height: 30px;
width: 30px;
border-radius: 50%;
border: 2px solid #03C9A9;
top: -15px;
background: white;
text-align: center;
line-height: 30px;
color: #03C9A9;
}
.mf-loader-text {
position: absolute;
width: 150px;
top: 20px;
}
#one-text {
left: -10px;
-webkit-animation: cl 3s;
}
#two-text {
left: 200px;
-webkit-animation: cl 3s;
-webkit-animation-delay: 2s;
-webkit-animation-fill-mode: forwards;
color: rgba(1, 1, 1, 0);
}
#three-text {
left: 480px;
-webkit-animation: cl 3s;
-webkit-animation-delay: 3s;
-webkit-animation-fill-mode: forwards;
color: rgba(1, 1, 1, 0);
}
#-webkit-keyframes cl {
from {
color: rgba(1, 1, 1, 0);
}
to {
color: rgba(1, 1, 1, 1);
}
}
#two {
left: 240px;
}
#three {
left: 490px;
}
#mf-loader {
width: 100%;
height: 3px;
background: #03C9A9;
position: absolute;
-webkit-animation: mymove 5s;
/* Chrome, Safari, Opera */
animation: mymove 5s;
border-radius: 3px;
}
/* Chrome, Safari, Opera */
#-webkit-keyframes mymove {
0% {
width: 0px;
}
50% {
width: 50%;
}
100% {
width: 100%;
}
}
/* Standard syntax */
#keyframes mymove {
0% {
width: 0px;
}
50% {
width: 50%;
}
100% {
width: 100%;
}
}
<div id="mf-loader-container">
<div id="mf-loader">
<div class="mf-loader-circle" id="one">
</div>
<div class="mf-loader-circle" id="two">
</div>
<div class="mf-loader-circle" id="three">
</div>
<div class="mf-loader-text" id="one-text">
Each day will be better than last.
<br>This one especially
</div>
<div class="mf-loader-text" id="two-text">
Subscribing .. Thank you for subscribing. We appreciate it!
</div>
<div class="mf-loader-text" id="three-text">
DONE
</div>
</div>
</div>
Here's a summary of the changes:
Removed the content from your circles in the HTML.
Created an :after pseudo-element, common to all your circles.
.mf-loader-circle:after {
position:absolute;
width:100%;
height:100%;
left:50%;
top:50%;
transform:translate(-50%, -50%);
}
Here, I used 2D transforms to position the number in the center with position:absolute;
Set each of the content:""; attributes to the necessary numbers using the elements' IDs.
Created an animation for the different numbers, for example:
#one:after {
content:"1";
-webkit-animation: check1 3s;
-webkit-animation-fill-mode: forwards;
}
#-webkit-keyframes check1{
from {
content:"1";
}
to {
content:"check";
}
}
NOTE: add the corresponding vendor prefixes.

Answer 2

You can use the :before to assign each number using content: 'number';. Then, you can animate the check transition smoothly in a keyframe by changing the color to white at 50%, then assigning it the checkmark value.
For this solution you only need to define 1 keyframe animation.
CSS Changes
Using content to display your numbers instead of inside of the html.
Setting up the keyframe animation, delay (except for the first one), and fill-mode.
.mf-loader-circle#two:before {
content: '2';
animation: changeLetter 2s;
animation-delay: 1.5s;
animation-fill-mode: forwards;
}
Changing the color to white, then assigning it the checkmark.
#keyframes changeLetter {
50% {
color: white;
}
100% {
content: "\2713";
}
}
#mf-loader-container {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
margin: auto;
width: 500px;
height: 30px;
}
.mf-loader-circle {
position: absolute;
height: 30px;
width: 30px;
border-radius: 50%;
border: 2px solid #03C9A9;
top: -15px;
background: white;
text-align: center;
line-height: 30px;
color: #03C9A9;
}
.mf-loader-circle#one:before {
content: '1';
-webkit-animation: changeLetter 2s;
/* Chrome, Safari, Opera */
animation: changeLetter 2s;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
}
.mf-loader-circle#two:before {
content: '2';
-webkit-animation: changeLetter 2s;
/* Chrome, Safari, Opera */
animation: changeLetter 2s;
-webkit-animation-delay: 1.5s;
animation-delay: 1.5s;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
}
.mf-loader-circle#three:before {
content: '3';
-webkit-animation: changeLetter 2s;
/* Chrome, Safari, Opera */
animation: changeLetter 2s;
-webkit-animation-delay: 3s;
animation-delay: 3s;
-webkit-animation-fill-mode: forwards;
animation-fill-mode: forwards;
}
.mf-loader-text {
position: absolute;
width: 150px;
top: 20px;
}
#one-text {
left: -10px;
-webkit-animation: cl 3s;
}
#two-text {
left: 200px;
-webkit-animation: cl 3s;
-webkit-animation-delay: 2s;
-webkit-animation-fill-mode: forwards;
color: rgba(1, 1, 1, 0);
}
#three-text {
left: 480px;
-webkit-animation: cl 3s;
-webkit-animation-delay: 3s;
-webkit-animation-fill-mode: forwards;
color: rgba(1, 1, 1, 0);
}
#-webkit-keyframes cl {
from {
color: rgba(1, 1, 1, 0);
}
to {
color: rgba(1, 1, 1, 1);
}
}
#two {
left: 240px;
}
#three {
left: 490px;
}
#mf-loader {
width: 100%;
height: 3px;
background: #03C9A9;
position: absolute;
-webkit-animation: mymove 5s;
/* Chrome, Safari, Opera */
animation: mymove 5s;
border-radius: 3px;
}
/* Chrome, Safari, Opera */
#-webkit-keyframes mymove {
0% {
width: 0px;
}
50% {
width: 50%;
}
100% {
width: 100%;
}
}
/* Standard syntax */
#keyframes mymove {
0% {
width: 0px;
}
50% {
width: 50%;
}
100% {
width: 100%;
}
}
#-webkit-#keyframes changeLetter {
50% {
color: white;
}
100% {
content: "\2713";
}
}
#keyframes changeLetter {
50% {
color: white;
}
100% {
content: "\2713";
}
}
<div id="mf-loader-container">
<div id="mf-loader">
<div class="mf-loader-circle" id="one">
</div>
<div class="mf-loader-circle" id="two">
</div>
<div class="mf-loader-circle" id="three">
</div>
<div class="mf-loader-text" id="one-text">
Each day will be better than last.
<br>This one especially
</div>
<div class="mf-loader-text" id="two-text">
Subscribing .. Thank you for subscribing. We appreciate it!
</div>
<div class="mf-loader-text" id="three-text">
DONE
</div>
</div>
</div>
JSFiddle